乳癌是女性常见的恶性肿瘤 ,病理分类多种 ,恶性度有所不同 ,并且转移途径亦有多种 ,血行转移至骨骼时 ,患者多处于肿瘤晚期。本文选择了 36例乳癌术后骨转移患者 ,回顾其病程以及治疗前、中、后血清CA1 53 的水平 ,发现骨转移时血CA1 53 水平明显增高。现报道如下。1　对象和 Breast cancer is a common malignant tumor in women. There are many pathological types of breast cancer. Malignancy is different, and there are many metastatic ways. When the blood is transferred to the bone, the patient is mostly in the late stage of the tumor. In this paper, 36 patients with postoperative bone metastases of breast cancer were selected. The course of the disease and the level of serum CA1 53 before, during and after treatment were retrospectively analyzed. It was found that serum CA1 53 levels were significantly increased during bone metastases. Report as follows now. 1 object and